package com.ktjiaoyu.crm.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.lang.reflect.Method;
import java.time.Duration;

@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {
    @Bean
    public KeyGenerator keyGenerator(){
        return new KeyGenerator() {
            @Override
            public Object generate(Object target, Method method, Object... params) {
                StringBuilder sb = new StringBuilder();
                sb.append(target.getClass().getName());
                sb.append(method.getName());
                for (Object obj : params)
                    sb.append(obj.toString());

                return sb.toString();
            }
        };

        }
        @Bean
    public RedisTemplate<Object, Object> redisCacheManager(RedisConnectionFactory redisConnectionFactory){
            RedisTemplate<Object,Object>redisTemplate= new RedisTemplate<>();
            redisTemplate.setConnectionFactory(redisConnectionFactory);
            Jackson2JsonRedisSerializer jackson2JsonRedisSerializer= new Jackson2JsonRedisSerializer(Object.class);
            ObjectMapper om = new ObjectMapper();
            om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
            om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
            jackson2JsonRedisSerializer.setObjectMapper(om);
            redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
            redisTemplate.setKeySerializer(new StringRedisSerializer());
            redisTemplate.afterPropertiesSet();
            return redisTemplate;
        }

        @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory){
            RedisSerializer<String>redisSerializer=new StringRedisSerializer();
            Jackson2JsonRedisSerializer jackson2JsonRedisSerializer=new Jackson2JsonRedisSerializer(Object.class);
            ObjectMapper om=new ObjectMapper();
            om.setVisibility(PropertyAccessor.ALL,JsonAutoDetect.Visibility.ANY);
            om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
            jackson2JsonRedisSerializer.setObjectMapper(om);
            // 配置序列化（解决乱码的问题）,jackson2JsonRedisSerializer支持泛型
            RedisCacheConfiguration config=RedisCacheConfiguration.defaultCacheConfig()
                    .entryTtl(Duration.ofDays(7)) // 设置缓存过期时间为1分钟
                    .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                    .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                    .disableCachingNullValues();
            RedisCacheManager cacheManager=RedisCacheManager.builder(factory)
                    .cacheDefaults(config)
                    .build();
            return cacheManager;
        }
    }

